In this paper for ASIP, a novel architecture of reconfigurable FFT is proposed. For the singed decimal number, the proposed design implemented for a reconfigurable 64 point FFT processor. Reconfigurable FFT processor is designed for 2, 4, 8, 16, 32 and 64 point FFT for the of integer k which incorporates a high speed ASIP. The part of OFDMA system is Alterable point FFT processor so there is a need of reconfigurable FFT processor. Proposed design is implemented on Xilinx 9.1i for DIF-FFT... Topics: FFT, DIF-FFT, OFDMA
This paper aims at designing a new algorithm for digital filters. The traditional methods like FIR, IIR have been improved in recent times with new approaches. However, the developments have used complex arithmetic calculation and dedicated DSP processors. In this research project, effort has been made to reduce such complexities using a procedure based on the technique of Conditional Averaging. The entire algorithm is developed using more of conditional statements and less of arithmetic... Topics: FFT, DSP, LPF
The crew compartment of the Full Fuselage Trainer, used for decades to train space shuttle crews at NASA's Johnson Space Center, is packed for shipping to the Museum of Flight in Seattle. This first of three large sections of the trainer, which contains the shuttle cockpit, will be transported inside NASA's Super Guppy aircraft this month for a welcome ceremony in Seattle planned for June 30. Topics: NASA, Full Fuselage Trainer, FFT, Super Guppy
In this paper a bank of velocity filters is devised to be used for isolating a moving object with specific velocity (amplitude and direction) in a sequence of frames. The approach used is a 3-D FFT based experimental procedure without applying any theoretical concept from velocity filters. Accordingly, each velocity filter is built using the spectral signature of an object moving with specific velocity. Experimentation reveals the capabilities of the constructed filter bank to separate moving... Topics: Velocity filters, filter banks, 3-D FFT
The biometric technology is used to identify individuals effectively compared to existing traditional methods. In this paper we propose Bimodal Biometric System using Multiple Transformation features of Fingerprint and Iris (BBMFI). The iris image is preprocessed to generate iris template. The two level Discrete Wavelet Transformation (DWT) is applied on iris template and Discrete Cosine Transformation (DCT) is performed on second level low frequency band to generate DCT coefficients which... Topics: Fingerprint, Iris, DWT, DCT, FFT, Euclidean distance.
The use of Digital Signal Processing has always been a field of research in the Electronics & Communication Engineering, and specially in the field of Speech & Audio Processing we can always see much of the research work and showing promising result with the use of Fast Fourier Algorithm in the relevant work. FFT is used in the process to analyze the response of speech in different filters using windows. Windowing is used to minimize the effect leakage and reduce the noise level. Many... Topics: : Hamming, Hanning, IIR, FIR, FFT, leakage
A new parallel pipelined feed forward architecture for real-time signal is proposed. A hardware oriented radix- 2 algorithm is derived by integrating a twiddle factor decomposition technique in the divide and conquer approach. The butterfly structure of radix-2 algorithm is modified in accordance with the flow of signal. The new butterfly structures are designed to handle the hybrid data path which consists of real & complex data paths. The proposed approach which can be extended to all... Topics: DITFFT & DIFFFT Algorithms, Fast Fourier Transform (FFT)
Food For Thought - Catecasting the Net (Episode 2) The first full episode covers: St. Dominic, What Catholics believe about the possibility of salvation for non-Catholics, How we know the bible is the Word of God, and a reflection on the Gospel for the 20th Sunday in Ordinary Time Topics: FFT, Food For Thought, Catecast, Religion, Catholic, Christian
This paper presents an Orthogonal Frequency Division Multiplexing (OFDM) transceiver that makes use of a low power Fast Fourier Transform (FFT) along with a Least Mean Square (LMS) filter. The folded FFT is developed via folding transformation and register minimization techniques with real values as inputs which leads to reduction in hardware complexity by exploiting the redundancy present in computing the FFT samples and also the amount of power consumed. A LMS filter is also designed for the... Topics: Folded FFT, LMS filter, OFDM, Power consumption, noise variance, MSE.
Next generation communication network will be required to provide increased data rate efficiently along with the flexibility to adapt to various dynamic traffic patterns in a cost effective manner. The optical fiber communication system can do the same along with low losses and good quality of transmission. In the recent past, the enormous growth of network traffic on deployed optical communication networks forced the demand for a more constructive utilization of the channel capacity of the... Topics: OFDM, Dispersion, Optical Fiber, SSMF, PMD, GVD, IFFT, FFT
One of the most expensive apparatus in a power system network is the Power Transformer, which needs a continuous monitoring of its health such that the system performs efficiently. Power transformer plays a crucial role in the operation of a power system network and hence its protection adopts the discrimination between internal and external faults. Along with tackling issues related against faults is essential at all times. Of the various methods of protection, available in literature and in... Topics: Differential Protection, Power Transformer, FFT, Inrush Current & Internal Fault
Every physical move we make is triggered by neural processes in the brain. With the right equipment and recent developments in both brain imaging technologies and cognitive neuroscience, it is possible to read and record these processes. This has led to the rapidly growing field of brain computer interfaces (BCI). The Brain Computer Interface (BCI) helps unblessed people to make use of the devices and applications through their mental activities. So people believe that BCI technology is a... Topics: BCI, EEG, FFT, Lab VIEW –Laboratory Virtual Instrument, Microcontroller
A significant problem in Multicarrier Code Division Multiple Access (MC- CDMA) system is the possibility of high Peak to Average Power Ratio (PAPR). This is due to the cumulative sum of N subcarrier peaks in the transmitted signals which reduces Power efficiency, resolution and battery life. In this paper a technique is proposed to make use of Inverse Discrete Cosine Transform (IDCT) and Inverse Discrete Wavelet Transform (IDWT) based Multicarrier Code Division Multiple Access (MC-CDMA) system.... Topics: MC-CDMA, PAPR, companding, MECCT, FFT, DWT, DCT, Fading channel.
Episode 3 - Mary's Assumption, Taking the Bread of Life literally, Praying when it seems like God isn't there, Reflecting on the Gospel for the 21st Sunday of Ordinary time Topics: FFT, Food For Thought, Catecast, Religion, Catholic, Christian